(19)

(11)

EP 4 038 452 A1

(12)

(43) Date of publication: 10.08.2022 Bulletin 2022/32 (21) Application number: 20870482.5 (22) Date of filing: 28.09.2020

(51) International Patent Classification (IPC):  G02F 1/167(2019.01) G02F 1/1675(2019.01) (52) Cooperative Patent Classification (CPC): G09G 3/344; E06B 9/24; G02F 2203/48; G02F 1/1677; B32B 17/10522; E06B 2009/2464; E06B 2009/2417; E06B 2009/2405 (86) International application number: PCT/US2020/053110 (87) International publication number: WO 2021/067194 (08.04.2021 Gazette 2021/14)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 30.09.2019 GB 201914105 16.10.2019 GB 201914933 (71) Applicant: E Ink Corporation Billerica, Massachusetts 01821-4165 (US)	(72) Inventors: O' KEEFFE, Donal Martin Billerica, MA 01821-4165 (US) O'KEEFFE, Timothy Billerica, MA 01821-4165 (US) (74) Representative: Cole, David John  46 Kirkhill Gardens West Greenlees Estate Cambuslang Glasgow G72 8EZ Cambuslang Glasgow G72 8EZ (GB)